Home / 150,823.81-208,138.57-82,842.38

Finding the Fourth Proportional to 150,823.81, 208,138.57 and 82,842.38

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Solution

The fourth proportional to 150,823.81, 208,138.57 and 82,842.38 is: 114,323.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,823.81 : 208,138.57 = 82,842.38 : x
  2. Step 2: Convert to fraction form
    150,823.81/208,138.57 = 82,842.38/x
  3. Step 3: Cross multiply
    150,823.81x = 208,138.57 × 82,842.38
  4. Step 4: Simplify right side
    150,823.81x = 17,242,693,260.80
  5. Step 5: Solve for x
    x = 17,242,693,260.80/150,823.81
  6. Step 6: Final answer
    x = 114,323.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.